1Meter 11mm Heat Shrink Sleeve Industrial Grade WOER (HST) is excellent for insulation. They have exceptional insulation characteristics, excellent stress control properties; long-term weather and regular wear and tear resistance, ease of installation, and reliable performance even in harshest of the situations. These High performance 2:1 heat shrink material tubes, bundles, and protects cables wire, and hoses are used for a wide range of DIY applications. It is used extensively for cable and wire harnessing, strain relief, insulation, color coding, identification, and protection.